silikonverbindungen with mikrobizider effect

摘要

Fungicidal compounds of formula (I): where X is O or S; RING is phenyl or thienyl; Het is a 5- or 6-membered heterocyclic ring containing one to three heteroatoms, each independently selected from oxygen, nitrogen and sulphur, the ring being substituted by one to four groups R4 ; R1 is hydrogen, optionally substituted (C1-4)alkyl, formyl, optionally substituted (C1-4)alkylC(=O), optionally substituted (C1-4)alkylC(=O)O, optionally substituted (C1-4)alkoxy(C1-4)alkyl, optionally substituted allyl, optionally substituted propargyl or optionally substituted allenyl; each R2 is, independently, halogen, optionally substituted (C1-4)alkyl, optionally substituted (C1-4)alkoxy or optionally substituted (C1-4)alkoxy(C1-4)alkyl; R3 is (CRaRb)m_Cy-(CRCRd )n-Y; each R4 is, independently, selected from halogen, C1-3 alkyl, C1-3 haloalkyl, C1-3 alkoxy(C1-3)alkyl and cyano; Ra, Rb, Rc and Rd are each, independently, hydrogen or optionally substituted (C1-4)alkyl; Cy is an optionally substituted carbocyclic or heterocyclic 3-7 membered ring which may be saturated, unsaturated or aromatic and which optionally contains a silicon atom as a ring member; (CRaRb)m and (CRcRd)n may be bound either to the same carbon or silicon atom of Cy or to different atoms separated by 1, 2 or 3 ring members; Y is Si(OpZ1)(Oq Z2)(OsZ) and provided that Cy contains a silicon atom as a ring member then Y may also be hydrogen; Z is C1-4 alkyl or C2-4 alkenyl (each of which is optionally interrupted by one heteroatom selected from O, S and N and is optionally substituted by one to three independently selected halogen atoms); Z1 and Z2 are, independently, methyl or ethyl; in and n are each, independently, 0, 1, 2 or 3; p, q and s are each, independently, 0 or 1; and r is 0, 1 or 2; or an N-oxide thereof.